Material working apparatus



Oct. 30, 1945. v .A, E. JARVIS -r 2,388,152

MATERIAL WORKING APPARATUS Filed Jan. 8, 1944 2 Sheets-Sheet 1 AE.JARVIS WVENTO m1 KELLER BY I A T TOPNEY Oct. 30, 1945. A, E. JARVISMATERIAL WORK INC: APPARATUS Filed Jan. 8, 1944 2 Sheets-Sheet 2 I 0FIG. 3

efimm A 7' TORNEY Patented Oct. 30, 1945 MATERIAL WORKING APPARATUSAlbert E. Jarvis, Arlington, and Willia m J. Keller, Jersey City, N. J.,assignors to Western Electric Company, Incorporatei New a corporation ofNew York York, N. Y.,

Application January 8, 1944, Serial No. 517,584 10 Claims. (01. 9011)This invention relates to material working apparatus, and moreparticularly to apparatus for slotting tubes. I

An object of the invention is to provide a material working apparatus,more particularly one which is simplein structure and highly eificientin cross-slotting tubular articles.

Other objects and advantages will be apparent from the followingdetailed description when considered in conjunction with theaccompanying drawings, wherein:

Fig. 1 is a side elevational view partially in section of an articleholding and feeding unit;

Fig. 2 is a fragmentary side elevational view of the apparatus, aportion thereof being shown in section;

Fig. 3 is a fragmentary sectional view taken substantially along theline 3"3 of Fig. 2;

Fig. 4 is a fragmentary sectional view taken substantially along theline 4-4 of Fig. 2;

Fig. 5 is a fragmentary end elevational View taken substantially alongthe line 5-5 of Fig. 2;

Fig. 6 is an enlarged fragmentary detailed View of a portion of thestructure shown in Fig. 4; and Fig. 7 is a fragmentary end elevationalview of the unit shown in Fig, 1, this view being taken substantiallyalong the line of Fig. 1.

Referring now to the drawings, attention is first directed to thearticleholding and feeding unit indicated generally at In in Fig. 1. This unitincludes a hollow handle portion apertured, at I2, to receive an end Mof a lever IS. The lever I5 is pivotally supported at It and has 7 ahandle portion I! which may be actuated by the operator upon grippingboth the handle portions and-||. An actuating pin l8, movably disposedin an aperture IQ of a threaded end 20 of the handle I is actuated bythe end l4 of the lever |5 to move a chuck 2| into open position. Thechuck 2| has a housing 22 mounted upon the threaded end 20 of the handleH, with a conical aperture 23 in the forward end thereof adapted toreceive the chuck 2|. The chuck 2| is of the contour shown, having atubular portion 25, notched longitudinally as at 26, providing resilientportions which normally urge jaws 21 thereof outwardly when the chuck ismoved into open position. A member 30, threadedly mounted upon the innerend of the chuck 2|, is slidably disposed in the housing 22 and isapertured, at 3!, to receive the actuating pin l8. A compression spring32., disposed in the housing 22 concentric with the adjacent chuckportion, engages the member 30 to normally urge the chuck 2| into closedposition, and, through the" tapered or co ical surfaces thereofindicated at 33, engaging the conical aperture or opening 23 tocauseclosing of the chuck to grip an article 35. The article in thepresent instance is tubular in general contour, it being'formed of anysuitable material such as brass. It will, therefore, be apparent that byactuating the lever l5, the end portion l4 thereof will push the rod orpin I8 toward the chuck end of the unit, first moving the chuck 2|relative to its housing 22 against the force of the spring 32, to causeopening of the chuck, and while in this position an article previouslyheld thereby may be released therefrom and another like article 35 maybe disposed in the chuck. Shoulders 36 in the mouth or gripping jaws ofthe chuck locate the article at a definite position with respect to thechuck when closed. Closing of the-chuc'k'is brought about through theforce of the spring 32 when the handle portion ll of the lever l5 isreleased. I w

The cutting means includes cutting elements or saws 38 and 39 mountedupon a rotatable shaft for continuous rotation duringthe use oftheapparatus' A holder or body 4| is disposed adjacent the cutting elements38 "and 39 and supports a housing 42 for the latter. Apertures 44' and45 are formed in the holder 4| of contours similar to the housing '22and its associated chuck 2|, to receive the unit l0 when the article 35is to be fed to the cutting elements. Associated with the apertures 44and 45 are grooves 46 and 41 respectively, these grooves exte'ndingin'transversedirections as illustrated in Fig. 5. Thegrooves 46 and 41are for receiving the lever 5, the latter being substantially square incross-section as illustrated in Fig. 5. Through the aid of the groove46. the unit I0 is located in agivenposition to locate this article 35relative to the cutting element 38. The groove 41 is so positioned as tocontrol the unit In through the aid of the lever 5, tocause the cutperformed on the article 35 by the element 39 to be at right angleswithrespect to that performed by the cutting element 38 on the article.When the article 35 is cut by'the element 38, the portionsof the articleon each side of the element 38 are selfsupporting against collapsing.However, upon positioning of the unit III with the article 35 in theaperture 45, the article has previously been slotted and requiresadditional support for the side portions thereof upon each side of theelement 39. At this position supporting plates or members 49 aredisposed in positions to be received in the notches or slots previouslycut into the article by the element/38. The plates 49 are that the innerends of the apertures 44 and 45 are tapered, as at 53, to receive theend of the chuck 2|, straight portions 54 of the apertures providingabutting surfaces to locate the unit ID in these apertures.Communicating with the apertures 44 and 45 are article receivingapertures 55 leading toward their respective cutting elements 38 and 39.Also, slots 56 are provided in the holder 4| for the cutting elements 38and 39. Downwardly projecting passageways 58 (Figs. 2, 4 and'5)eliminate the possibility of particles interfering with the accuratelocation of the unit In in each of the apertures 44 and 45, these.passageways communicating with the apertures adjacent the inner endsthereof and extending downwardly andoutwardlythrough the holder 4|.

During the operation of the apparatus, theunit I is provided with anarticle 35 in its chuck 2| located therein by the shoulders 36, thechuck having been actuated into open position through the aidof thelever l5. By releasing the lever l5, the-chuck is closed through theforce of the spring 32 and at this timethe article 35, through the aidof the unit l0, maybe moved throughthe apertures 44 and 45. As the unitis moved into the aperture, the article 35, upon reaching the cuttingelement 38, is slotted to a given depth limited by the abutting surface54-which the unit l0, particularly the chuck 2| thereof, engages. Thisinward movement of the unit I0 is controlled through the groove 46 andthe lever l5, causing the article to be slotted in'a given direction.The unit I!) with the slotted article is removed from the-aperture 44,and without varying the location of the article in the unit they aredisposed in the aperture 45, their positions therein being controlled bythe notch or groove 41. Here again the article 35 is slotted, the slotsat this time extending at right angles with respect to the previousslots formed by the cutting element 38. During this lastslotting'operation the portions of the article are held againstcollapsing by the plates 49. At the completion of the slottingoperation, the unit ID with the slotted article 35 may be removed fromthe aperture 45, after which the slotted article may be moved from theunit during-actuation of the lever l5, at which time a new article maybe disposed in the unit and the slotting operation repeated.

Although specificimprovements of the invention have been shown anddescribed, itwill be understood that they are but-illustrative and thatvarious modifications may be made therein without departing from the,scope and spirit of this invention as defined by the appended claims.

What is claimed is:

1. An apparatus for slotting articles comprising rotatableslottingmeans, a unit for holding an article and feeding it to theslottingmeans, a support having a plurality of receiving'portions forsuccessively guiding the unit indifferent positions toward the, cuttingmeans to cause cutting ofslots. at. different angles in the article bythe slotting means, and meansreceivable in one slot of the article tosupport adjacent portions of the article againstcollapsing duringsubsequent slotting of the article.

2. An apparatus for slotting articles comprising rotatable slottingelements, a unit for holding an article and feeding it to the slottingmeans, a support having unit receiving portions disposed adjacent eachslotting element for guiding the unit successively toward their slottingelements to cause cutting of slots in the article, and means receivablein a slot in the article cut by one of the'slotting elements to hold thearticle against collapsing during cutting of another slot in the articleby another of the elements.

3. An apparatus for slotting articles comprising rotatable slottingelements, a unit for holding an article and feeding it to the slottingmeans, a support having unit receiving" portions disposed adjacent eachslotting element for guiding the unit successively toward their slottingelements to cause cutting of slots in the article, and means receivablein a slot in the article cut by one of the slotting elements to hold thearticle against collapsing during cutting of another slot in the articleby another of the elements and adapted to bar slotting of the article bythe second ele ment until it has been slotted. by the first element.

4. An apparatus for slotting articles comprising spaced. rotatableslotting elements, a unit having a chuck actuable to. removably hold anarticle, a lever and means under the control of the lever to actuate thechuck, and a support having spaced guideways for the unit in alignmentwith their respective elements to singly guide the unit and cooperatingwith the lever thereof to cause successivejeeding ofthe article indifferent positions to the slotting elements to cause cross slotting ofthe article.

5. An apparatus for slotting articles comprising. spaced rotatableslotting elements, a unit having a chuckv adapted to'removably hold anarticle, a support having spaced guideways for the unit in alignmentwith their respective slotting elements to singly guide the unit indifferent positions to the slotting elements to cause cross slotting ofthe article, and guideways for the article adjacent the elements and inaxial alignment with the guideways for the unit.

' 6. An apparatus for slotting articles comprising spaced, rotatableslotting elements, a unit having a chuck actuable to removably hold anarticle, a lever and means under the control of the lever to actuate thechuck, and a support having spaced guideways for the unit in alignmentwith their respective elements and transverse lever receiving portionscooperating to cause successive feeding of the article in differentpositions to the slotting elements to cause cross slotting of thearticle.

'7. An apparatus for slotting articles comprising a first and secondslotting element mounted at spaced positions on a common axis, a unithaving a chuck adapted to removably hold an article, a support havingspaced guideways in alignment with:their respective slotting elements tosingly receive and guide the unit and article toward the elements tocause cross-slotting of the, article, and means disposed adjacent theguideway for the second element and receivable in aslot cut in thearticle by the first element to hold the article against collapsingduring slotting of the article by the second element.

8. Ari-apparatus for slotting articles comprising slotting elementsmounted-at spaced positions on a common axis, a unit having a, chuckadapted to removably hold an article, a support having spaced guidewaysin alignment with their respective slotting elements to singly receiveand guide the unit and articl toward the elements to causecross-slQttiIlg of the article, and means to bar movement of the articleto the second element until it is slotted by the first element andreceivable in the slot cut in the article by the first element tosupport the article against collapsing during slotting of the article bythe second element.

9. An apparatus for slotting articles comprising slotting elementsmounted at spaced positions on a common axis, a unit having a chuckadapted to removably hold an article, a support having spaced guidewaysin alignment with their respective slotting elements to singly receiveand guide the unit and article toward the elements to causecross-slotting of the article, means to bar movement of the article tothe second element until it is slotted by the first element and 20slotted by the other receivable in the slot cut in the article by thefirst element to support the articl against 001- lapsing during slottingof the article by the second element, and means to locate the unit inthe guideway adjacent the second element with the said slot formed bythe first element in registration with the said last mentioned means.

10. An apparatus for slotting articles comprising slotting elementsmounted at spaced positions on a common axis, a unit having a chuckadapted to removably hold an article, a support having sets of aperturestherein, one set to receive the unit singly for movement limiteddistances toward their respective elements, the other set positioned tosingly receive th article and direct it to the elements, and meansdisposed in one of the apertures of the last mentioned set to bar thearticle from movement to the adjacent element until the article is firstelement.

ALBERT E. JARVIS. WILLIAM J. KELLER.

